0402 Side-Emitting LED
0402 Side-Emitting LEDs - Hongcheng Optoelectronics LED Manufacturer
Product Overview
The 0402 side-emitting SMD LED is an ultracompact SMD side-emitting light source with small size, stable side emission, good brightness consistency, low power consumption and easy placement.
Key Advantages
• Ultra-small package: Compact 0402 design suits space-constrained electronic products
• Side emission: Suitable for button backlighting, side indicators, light pipes and light guide panels
• Stable emission: uniform brightness and good color consistency, suitable for volume production
• Low power consumption: suitable for portable electronics, smart wearables and low-power applications
• Easy placement: Supports automated SMT production with efficient soldering
• Binning available: Brightness, wavelength, voltage and other parameters can be binned to improve finished-product consistency
Applications
• Button backlighting
• Side indicators
• Light pipes and light guide plates
• Smart wearable devices
• Bluetooth earphones and digital products
• Instrument displays
• Medical/beauty electronic equipment
Product Features
Chips: Grade A chips from leading brands in Taiwan and mainland China deliver lasting luminous efficacy, stable output and strong ESD resistance. Withstands two reflow soldering cycles and has passed thermal shock testing.
Gold wire: 99.99% pure gold wire bonding for good conductivity and high stability.
Encapsulant: high-quality material resists sulfurization and blue-light degradation, improving brightness and reliability.
Lead frame: gold-plated/silver-plated options offer good thermal conductivity, easy solder wetting and oxidation resistance.
Packaging: Vacuum moisture-resistant packaging; reel/tape packaging is available for automated SMD production.
Category: 0402 Side-Emitting SMD
Quick Reference: Key Optoelectronic Parameters (by Emission Color)
Test conditions: See the IF column for test current; ambient temperature 25℃. Data is taken from each model's datasheet. “—” indicates that the datasheet does not specify this item. Download the corresponding PDF for complete specifications.
| Emission Color | Part Number | Forward Voltage VF (V) | Wavelength / Color Temperature CCT | Luminous Intensity Iv (mcd) | Viewing Angle 2θ½ (°) | Test Current IF (mA) | Operating Temperature |
|---|---|---|---|---|---|---|---|
| Red | HC-S1005IAR20TP-T4 | 1.8~2.4 | 618~628 nm | 25~40 | 120 | 5 | -30 ~ +80℃ |
| Blue | HC-S1005IAB65TP-T4 | 2.6~3.2 | 464~474 nm | 30~100 | 120 | 5 | -30 ~ +80℃ |
| Pure Green | HC-S1005IAG20TP-T4 | 2.5~3 | 525~535 nm | 150~360 | 120 | 5 | -30 ~ +80℃ |
0402 Side-Emitting LED A 0402 side-emitting SMD LED (1.0×0.5mm-class side-view package) with light emitted parallel to the PCB. Suitable for edge-lit backlighting, indicators and coupling to light-guide strips in ultra-thin devices. Supplied directly by Dongguan Hongcheng Optoelectronics Co., Ltd. (an international member of Guangyu Group, with over 20 years of LED packaging experience). Uses A-grade chips and 99.99% pure gold wire bonding, with RoHS certification. Free samples and custom specifications are available. Download the datasheet PDF on this page for complete electrical specifications (voltage, brightness, wavelength, current, dimensional drawings, pad design and tape-and-reel packaging).
Q: How is the placement orientation of side-emitting LEDs determined?
A: Orient the emitting surface toward the light-entry side of the light guide panel. The first datasheet page includes a placement orientation diagram. Contact our engineering team for stencil aperture and pad design recommendations.
Q: What placement-machine accuracy does this LED require?
A: This 0402 package (1.0×0.5mm) is small. A high-precision placement machine with ±0.05mm-class positioning accuracy and a precision stencil are recommended. Lead-free reflow soldering is supported (peak ≤260℃/≤3s).
Product Specifications at a Glance
| Product Name | 0402 Side-Emitting LED |
|---|---|
| Package: | SMD Package (Side-emitting) |
| Dimensions | 1.0×0.5mm |
| Mounting: | SMD surface mounting (suitable for reflow soldering) |
| Emission Color | Multiple colors available; customization supported |
| Environmental Certification | RoHS |
| Packaging Quantity | 4,000 pcs/reel (taped) |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization: | Custom colors, brightness and wavelength binning, and encapsulants available; confirm details when requesting a quote |
| Detailed Specifications | See the datasheet PDF on this page for complete electrical parameters |
| Minimum Order Quantity (MOQ) | 4K (4,000 pcs, Tape and Reel 1 Reel) |
| Sample Lead Time | Typically 3-4 working days |
| Volume Production Lead Time | Typically 10-15 working days |
💡 Typical Applications: Common applications include PCB status indication, backlighting and ambient lighting. Supports fully automatic SMT assembly and reflow soldering.
Forward Voltage and Wavelength Quick Reference by Color
Voltage varies significantly between colors in the same package. Select current-limiting resistors using the values for the specific color:
| Emission Color | Wavelength Range | Forward Voltage | Chip Material |
|---|---|---|---|
| Red | 620~625nm | 1.8~2.4V | AlGaInP |
| Yellow | 585~595nm | 1.8~2.4V | AlGaInP |
| Orange | 600~610nm | 1.8~2.4V | AlGaInP |
| Standard Green | 565~575nm | 1.8~2.4V | AlGaInP |
| Emerald Green | 520~530nm | 2.8~3.4V | InGaN |
| Blue | 450~470nm | 2.8~3.4V | InGaN |
| White (Neutral White) | Full Spectrum | 3.0~3.4V | InGaN + phosphor |
Ordering and Inquiry Information
SMD models use tape-and-reel packaging (quantity per reel is subject to the corresponding datasheet), with minimum orders in full reels. Sample lead time is typically 3-4 working days; volume production lead time is typically 10-15 working days (subject to order confirmation). For volume pricing, use the inquiry link on this page or phone/WeChat 139 2571 4318. Specify the exact part number and quantity.
Selection Recommendations
Forward voltage varies considerably by color/model (commonly 1.8~3.4V). Calculate current-limiting resistors using the VF range in the selected model's datasheet, and set the reflow profile according to the corresponding datasheet.
Related Reading: LED Indicator Part Number Comparison Table (Complete 2026 Edition) ｜ Datasheet Download Center
Note: The parameters on this page were compiled against product documentation on 2026-09-17. Items not provided in a datasheet are not assigned uniform values. Refer to the datasheet for the relevant part number.
